From 3c2a01cb0fc567c18b802f25d619e31c196294ce Mon Sep 17 00:00:00 2001 From: Jack Zhang Date: Thu, 7 Jan 2021 18:38:29 +0800 Subject: drm/amdgpu/sriov Stop data exchange for wholegpu reset [Why] When host trigger a whole gpu reset, guest will keep waiting till host finish reset. But there's a work queue in guest exchanging data between vf&pf which need to access frame buffer. During whole gpu reset, frame buffer is not accessable, and this causes the call trace. [How] After vf get reset notification from pf, stop data exchange. Signed-off-by: Jingwen Chen Signed-off-by: Jack Zhang Reviewed-by: Monk Liu Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 2d51b7694d1f..e223fca3ed00 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -573,6 +573,7 @@ void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev) DRM_INFO("clean up the vf2pf work item\n"); flush_delayed_work(&adev->virt.vf2pf_work); cancel_delayed_work_sync(&adev->virt.vf2pf_work); + adev->virt.vf2pf_update_interval_ms = 0; } } -- cgit